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Full Marks: 60 | Pass Marks: 24 | Time: 3 hours.
Candidates are required to give their answer in their own words as far as practicable.
The figures in the margin indicate full marks.

Attempt all questions. (10×6=60)

What do you mean by internet number? Describe the role in Regional Internet Registry (RIR) and National Internet Registry (NIR) in the internet systems.

How structure of a domain name looks like describe with an example. How forward DNS resolution works?

How IPv6 addresses can be classified? Discuss about IPv6 header structure.

How SMTP differs from POP? What are the reasons for multiple protocols in internet systems?